| Starter | Tm | Tier | Game |
|---|---|---|---|
| Bucky Walters | CIN | 9.97 | 193909020_CHN_CIN |
| Red Ruffing | NYA | 6.82 | 193909020_NYA_BOS |
| Bob Feller | CLE | 5.17 | 193909010_NYA_CLE |
| Curt Davis | SLN | 2.2 | 193909031_PIT_SLN |
| Carl Hubbell | SFN | 2.05 | 193909030_LAN_SFN |
| Starter | Tm | Tier | Game |
|---|---|---|---|
| Lefty Mills | BAL | -6.05 | 193909030_BAL_CLE |
| Cotton Pippen | OAK | -1.68 | 193909030_OAK_MIN |
| Hugh Mulcahy | PHI | -0.89 | 193909032_ATL_PHI |
| Elden Auker | BOS | -0.82 | 193909010_BOS_DET |
| Bill Dietrich | CHA | -0.52 | 193909032_DET_CHA |
Based on accumulated WAA for this season up to 1939-09-03.
| Rank | WAA | Name | IP | Tm |
|---|---|---|---|---|
| +002+ | 11.06 | Bucky Walters | 250 | CIN |
| +005+ | 7.87 | Bob Feller | 233.3 | CLE |
| +006+ | 7.81 | Red Ruffing | 212 | NYA |
| +009+ | 6.63 | Paul Derringer | 237 | CIN |
| +014+ | 5.74 | Lefty Grove | 158 | BOS |
| +019+ | 5.32 | Hugh Casey | 168 | LAN |
| +020+ | 5.23 | Claude Passeau | 221.7 | TOT |
| +022+ | 4.89 | Carl Hubbell | 117 | SFN |
| +024+ | 4.65 | Mace Brown | 164.3 | PIT |
| +026+ | 4.49 | Ted Lyons | 138.7 | CHA |
| +027+ | 4.44 | Lou Fette | 139 | ATL |
| +029+ | 4.31 | Curt Davis | 209 | SLN |
| +033+ | 4.15 | Bob Bowman | 136 | SLN |
| +035+ | 4.07 | Bill Lohrman | 156.7 | SFN |
| +036+ | 3.91 | Bill Posedel | 193.3 | ATL |
| +037+ | 3.9 | Bump Hadley | 129 | NYA |
| +038+ | 3.78 | Dutch Leonard | 217.3 | MIN |
| +041+ | 3.59 | Mort Cooper | 155.7 | SLN |
| +043+ | 3.44 | Steve Sundra | 86.7 | NYA |
| +044+ | 3.37 | Atley Donald | 144.7 | NYA |
| +045+ | 3.34 | Milt Shoffner | 142.7 | TOT |
| +050+ | 3.19 | Marius Russo | 80 | NYA |
| +052+ | 3.11 | Whitey Moore | 154.7 | CIN |
| +055+ | 3.05 | Larry French | 147.3 | CHN |
| +056+ | 2.99 | Cliff Melton | 164.7 | SFN |
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